Compasses



R. GONZALEZ.

COMPASSES.

APPLICATION FILED MAR. 15, 1920. 1,392,825. A Patented Oct- 4, 1921 2 SHEETS-SHEET I.

INVENTOR ATTORNEY wrmzsses IR. GONZALEZ.

COMPASSES. APPLICATION FILED MAR. 15. 1920.

Patented Oct, 4, 1921.

2 SHEETS-SHEET 2.

are

RAMON GONZALEZ, OF MANILA, PHILIPPINE ISLANDS.

OOIVIIPASSES.

To all whom it may concern:

Be it known that 1,-RAMON GONZALEZ, a citizen of the United States, residing at Manila, Philippine Islands, have invented new and useful Improvements in Compasses, of which the following is a specification.

This invention .relates to drafting instruments, and has for an object the provision of a compass of light, simple and durable construction, which may be manufactured and sold at a low cost.

Another object is the provision of a compass which is capable of a wide range of adjustment, for the purpose of inscribing curves or circles of greatly varying diameters, the said compass being capable of use after the manner of a beam compass and also of use as a ordinary two legged pivoted compass, the said compass being further capable of folding compactly when not in use.

With the above and other objects in view, the invention includes the following novel features and details of construction, to be hereinafter more fully described and illustrated in the accompanying drawing.

In the drawings:

Figure 1 is a view in elevation showlng the compass adjusted for use as a beam compass and employing a pair of adjustably connected bars.

Fig. 2 is a similar view illustrating a dlfferent adjustment of the compass.

Fig. 3 shows one manner of adjusting the compass with the use of a single beam.

Fig. 4 shows the compass adjusted for use after the manner of an ordinary two-legged pivoted compass.

Fig. 5 is a transverse sectional vlew on the line 55 of Fig. 4.

Fig. 6 is a detail view of the spring washer employed in the pivoted connection between the various members of the compass.

Fig. 7 is a face view showing the compass folded.

Fig. 8 is an edge view with the parts in position shown in Fig. 7

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, the invention includes a pair of bars 10, which are longitudinally slotted as at 1 1. These bars are preferably flat in cross section and may be made of any suitable material, such as German silver, aluminum or other similar metal. The bars 10 are pivotally connected together and for this purpose, there is provided a screw 12 which Specification of Letters Patent.

carries at one end a flat preferably rectangular head 13. This head fits within the slot of one of the bars 10, while a fiat disk 1 1 bears upon the outer face of the said bar, the rectangular head 13 preventing rotation of the screw 12. Mounted upon the screw 12 for contact with the other bar 10, is a washer 15, the latter being of the same shape and size as the head 13, but is provided with an open- 111g for the passage of a screw. Also mounted upon the screw 12 is an adjusting nut 16 and positioned between this nut and the washer 15 is a spring washer 17. This last mentioned washer is provided with an inwardly extending lug 18, which is adapted to enter and slide in a groove 19 arranged longitudinally of the threaded end of the screw 12. By this means the bars 10 may be properly adjusted and may be moved pivotally with respect to one another without imparting movement to the nut 16.

One of the bars 10 has connected thereto a leg 20, the latter being longitudinally slotted as indicated at 21 and being secured to the bar by fastening devices similar to that previously described for securing the bars to one another. One end of the leg 20 has extending therefrom a needle point 22, as is usual in instruments of this character.

The other bar 10 has secured thereto a leg 23, which is longitudinally slotted as indicated at 24., the manner of connecting this leg and the bar 10 being identical with that previously described in connection with the leg 20 and the connection between the two bars 10. One end of this leg 23 carries a split sleeve 25, for the purpose of receiving a pen 26, as shown in Figs. 1, 3 and 4: of the drawings, or a pencil 27 as is shown in Fig. 2. The leg 20 is further provided with an outwardly extending pin 28, upon which the finger may be pressed for the purpose of steadying the compass when in use.

It will be seen from the accompanying drawings, that the instrument is capable of a wide range of use, and may be used with either one or both of the slotted bars 10,

thereby obviating the necessity of having a number of instruments for inscribing different size circles. When not in use, the instrument may be compactly folded as illustrated in Figs. 7 and 8 of the drawings and when in such folded position, may be easily carried in the pocket or a suitable case.

The invention is susceptible of various changes in its form, proportions and minor Patented Oct. 4%, 1921. .Application filed March 15, 1920. Serial No. 365,892.

details of construction, and the right is herein reserved to make such changes as properly fall Within the scope of the appended claims.

Having described the invention What is claimed asnew is 2- a V 1. A compass embodying a pair of bars slotted substantially throughout their lengths, means extending through the slots of the bars for pivotally and adj ustably connecting them together, a slotted leg slidingly and pivotally connected to each of the bars and capable of being arranged parallel or at an angle with respect to the other leg, a needle point carried by one of the legs and a split sleeve carried'by the other leg.

2. A compass embodying a pair of lon- 1 them tobe adjusted pivotally and longitudinally with respect to each other,'a longitudinally slotted leg pivotally connected to one of said bars, a needle point located at one end of the leg, a second slotted bar pivotally connected to the other bar, a split sleeve located at one end of said second leg and means 7 passing through the slot of each of the legs and bars for adjustably securing said legs to said bars and permitting the legs'to be adjusted pivotally and longitudinally on said bars. I

,In testimony whereof I affiX-my signature.

RAMON GONZALEZ. 

